I searched Pinterest for peanut butter desserts and found these! I wouldn't agree with the takes no time at all claim, but can definitely attest to the yumminess.
I used silicone baking cups, because I thought they'd be easier to fill than paper. I found the first step to be a bit time-consuming - I used a mini spatula to coat the sides of the cup about halfway up with chocolate, then let the cups set in the fridge while mixing the filling. The recipe suggests adding crushed graham crackers, which I did not have, so I used crushed pretzels instead (minus the extra pinch of salt) ... two thumbs up! Everyone liked the extra crunchiness. They did take quite a bit of time to set - the chocolate was still a bit sticky after two hours in the fridge, but overnight was perfect.
I'm not a huge Reese cup fan, but I LOVED these! Definitely worth a try!